Gasoline stove and method of operating same



DeC- 18, 1934 M. H. PINKERTON GASOLINE STOVE AND METHOD OF OPERATINGSAME Filed June 6, 1932 fade/afar Patented Dec. 118, 1934 GASOLINE STOVEAND METHOD OF OPERATING SAME Milan H. Pinkerton, Marshalltown, Iowa.Application June 6, 1932, Serial No. 615,498

1 Claim.

The objects of my invention are to provide a gasoline stove of simple,durable and inexpensive construction which may be ignited instantly andwithout priming, and which when ignited Will 5 continue to burn at amaximum efficiency with a minimum of fuel.

A further object is to provide an improved method of operating agasoline stove, whereby the burners may be instantly ignited withoutpriming, and whereby after it is ignited the operator may, by observingthe height and color of the flame at the burner, manipulate a singlevalve to supply the proper air and gas mixture for producing perfectcombustion at the burner.

My invention consists in the construction, arrangement and combinationof the various parts of the device, and the method of operating same.whereby the objects contemplated are attained, as hereinafter more fullyset forth, pointed out in my claim, and illustrated in the accompanyingdrawing, in which:

` Figure 1 shows a perspective View of a stove embodying my invention;and

Figure 2 shows an enlarged, detail, sectional view of the gasoline tankand pipes leading to and from it.

Referring to the accompanying drawing, I have used the reference numeral10 to indicate generally the gasoline tank in which there is placed anair supply pipe ll leading to a point near the bottom of the tank. 12indicates a gas supply tank leading from the top of the tank. 'I'he tankis preferably filled with blocks or particles 13 of absorbent materialsaturated with gasoline or similar liquid fuel.

The reference numeral 14 indicates generally an electrically operatedfan of ordinary construction, dischmging into the air supply pipe 11,which air supply pipe is conducted to positions 40 close to the burners15, so that air during its passage through the pipe will be warmedduring the operation of the stove and delivered to the gasoline tank inwarm condition.

The gas supply tank 12 communicates with the 4Q burners through pipes16, each capable of being opened or closed and regulated by a valve 17.

Communicating between the air supply pipe 11 and the gas supply pipe 12is a secondary air supply pipe 18 in which there is a hand controllablevalve 19 to shut off or regulate the amount of air passing through thepipe 18.

In practical operation with my improved stove, I have demonstrated thatwhen the absorbent material within the tank is saturated with gasolineand the fan 14 started, and with the valve 19 closed and one or more ofthe burner valves 17 opened, then a current of air will be forcedthrough the gasoline tank and deliver a relatively rich gas mixture tothe burner, which can be instantly ignited without priming.

As soon as the burner is ignited and the current of warm air is passedthrough the gasoline tank, then a relatively rich gas mixture will bedelivered to the burner, and it will burn with a relatively high flame,which will be of a reddish yellow appearance. lates the secondary airfrom the fan is Then the operator manipuair supply valve 19 and theforced into the gas mixture within the pipe 12, and thereby delivers athoroughly mixed gas and air supply to the burner, and instantly theheight of the llame is reduced and the color of the flame turns to arelatively light blue color, indicating a highly eilicient combustion.In this manner the operator may readily and easily deliver the propermixture of gas and ,l

air to the burner for highly eicient combustion. With my improved stovestructure the primary air is forced under pressure through the gasolineand a rich gas is forced into of the stove under pressure greater thanthat a of the atmosphere.

the gas supply pipe Secondary air is then forced obtain an ideal mixturein the gas supply pipe under all conditions.

After the valve has once been adjusted, the name will continue in theburner of the same size and color as it was originally adjusted to, so

long as the tank contains fuel.

the proper amount of My improved method of operating the stove consistsin delivering a constant supply of warm air through an air pipe in thegasoline tank, and then delivering gas from the gasoline tank to theburners througha gas supply pipe, then igniting one of the burners, thenobserving the height and color of the flame at the burner, and thenmanipulating the valve 19 to cause the ow of air from the air supplypipe to the gas supply pipe outside of the tank, and regulating thevalve to supply such a quantity of air as to provide the highlyefficient mixture of air and gas to the burner, which is determined bythe color of the flame.

Then when the burner is shut oli, the- 2 Valve 19 is also closed so thatwhen a Valve 17 is opened with the fan 14 running, a rich mixture of gaswill be forced through the burner for purposes of ready ignition withoutpriming or the like.

I claim as my invention:

In a gasoline stove, the combination of a burner, a gasoline supply tanksupported below the burner, a fan, aA primary air pipe leadingv from 10the fan to a point within the gasoline tank below the liquid leveltherein, a portion of said pipe being arranged close to the burner forheating the primary air and vaporizing the gasoline Within the supplytank, a pipe for gas and air leading from the gasoline tank from abovethe liquid level to the burner, a mixing pipe leading from the primaryair pipe to the gas and air pipe and a valve in said mixing pipe forcontrolling the ow of air into the gas and air pi MILAN HQPINKERTON.

